Product Overview

The Honeywell MU-TDID12 (Part Number: 51304441-100) is a Digital Input (DI) processor card used within Honeywell TDC 3000 and High-Performance Process Manager (HPM) systems. It is responsible for acquiring discrete status signals from field devices such as pressure switches, motor starters, and push buttons, and transmitting these signals to the control system for monitoring, interlocking, and sequence-of-events processing.

We supply this unit as 100% brand new and original factory equipment, ensuring dependable signal acquisition, robust noise immunity, and reliable performance in safety-critical industrial applications.

Technical Specifications

Engineering Advantages

High-Speed Logic Scanning
The internal processor performs rapid input scans, allowing near real-time detection of status changes. This is essential for safety interlocks and sequence-of-events (SOE) monitoring where timing accuracy is critical.

Superior Noise Immunity
Advanced filtering circuits suppress EMI and RFI commonly present in industrial environments, reducing the risk of false triggering and ensuring signal integrity.

Ultra-Slim Profile
With a compact 2.2 cm width, the module enables high-density I/O configurations within standard card files, optimizing cabinet space without additional infrastructure.

Onboard Diagnostics
Integrated LEDs and self-test capabilities provide immediate visual indication of module status, simplifying troubleshooting and reducing maintenance downtime.

Ruggedized Construction
Manufactured in the USA to industrial-grade standards, the module is designed to withstand thermal variations, vibration, and harsh operating conditions typical of refineries and power plants.

FAQs

What is the difference between the -100 and newer -175 revisions?
The -100 revision is a stable and widely used hardware version within the TDID12 series. Newer revisions may include minor updates, but the -100 remains compatible with many established TDC 3000 systems.

Is this a brand new or refurbished digital input board?
It is 100% brand new, original equipment, supplied in factory-sealed anti-static packaging with full manufacturer markings and traceability.

Does this module require a specific Field Termination Assembly (FTA)?
Yes. The MU-TDID12 must be paired with a compatible digital input FTA (e.g., MC-TDID12 or MC-TDIY22), where field wiring connections are physically terminated.

Can this module handle 120 VAC inputs directly?
No. It is designed for DC logic inputs. AC signals (such as 120 VAC) require a compatible AC input FTA that conditions the signal before it reaches the processor card.